In the case of Eliza, it had to be purchased as a pre-order for Tekken 7 itself before its release in 2017 or 30 days after. You cannot “unblock” any of them without pay-to-play content. These fighters are also known as Tekken 7 hidden characters or Tekken 7 unlockable characters. We only called them 'secret characters' because they cannot be played in the standard version of the game.
If you bought the game and launched it you would find such Tekken 7 secret characters as Fahkumram, Leroy Smith, Negan, Armor King, Lei Wulong, Noctis, Eliza, Geese Howard, Anna Williams, Craig Marduk, Julia Chang, Zafina, Ganryu. Perhaps this explains the presence in the game, for which we already paid, 'blocked' characters. The developers created Tekken 7 to, on the one hand, allow players to feel like martial arts masters without getting up from the couch, and on the other hand, to earn their 'bread and butter'. Get the latest TEKKEN 7 guides! Get started!